The structure A + ~ないで + B means to do B without doing A.
It is used with a verb in the plain negative form + ~で + a second verb. The second verb can be in any tense and can be either formal or informal.
| As for tea, I drink it without putting any sugar in. | お茶 は、 佐藤 を 入れないで 飲みます。ocha wa, satou o irenaide nomimasu. |
| I left without taking an umbrella. | 傘 を 持たないで 出ました。kasa o motanaide demashita. |
| Every morning, I go to work without eating breakfast. | 毎朝、 朝ごはん を 食べないで 仕事 に 行く。maiasa, asagohan o tabenaide shigoto ni iku. |
